Detector for roving and similar machines



T. BENTLEY.

DETECTOR FOR ROVING AND SIMILAR MACHINES.

APPLICATION HLE MAR-14. I921.

1,415,917. Pa tented May16,192;2.

Invenror. Thomas Benrley UNITED STATES PATENT OFFICE.

THOMAS IBENTILEY, OF DRACUT CENTER, MAWACHUSEITS, ASSIGNOR F ONE-HALF TO BENTLEY MACHINE COMPANY, OF DRAiCUT CENTER, MASSACHUSETTS, A COR- POERATION' OF IASSACEUSETTR DETECTOR FOB ROWING AND SIMILAR MACHINES.

To all whom it may concern:

Be it known that I, THOMAS BENTLEY, a citizen of the United States, residing at Dracut Center, county of Middlesex, State of Massachusetts, have invented an im rovement in Detectors for Roving and Similar Machines, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to roving machines and the like in which a plurality of slivers are led to suitable guides and united in one roving by suitable drawing rolls, and it re lates particularly to the guides for the slivers and the detector devices associated with the guides and which become operative to assist in stopping the machine when any sliver breaks.

The object of the invention is to provide an improved form of guide and detector which is simple in construction, which can be readily threaded, and the detector of which isso arranged as to obviate any possibility of its becoming bent or injured by engagement with the vibrating feeler.

Other objects of the invention are to improve generally guides and detectors for rov- 1ng machines, all as will be more fully hereinafter set forth.

In order to give an understanding of my invention, I have illustrated in the drawin s a selected embodiment thereof which will now be described, after which the novel features will be pointed out in the appended claims.

In the drawings, Fig. 1 is a view of the back rail of a roving machine showing a plurality of my improved guides and detectors mounted thereon;

Fig. 2 is a section on the line 2-2, Fig. 1.

Fig. 3 is a view showing the opposite side of the guide and. detector from that illustrated in Fig. 1;

Fig. 4; is an enlarged perspective view of one of the guides and detectors;

Fig. 5 is an enlarged section on the line 5-5, Fig. 3.

Fig. 6 is aperspective of the detector.

Specification of Letters Patent.

Inasmuch as my invention relates only to the guide and detector, I have not thought it necessary to illustrate herein a roving machine.

In the drawings, 1 indicates the usual back rail over which. the slivers designated at 2' pass as they travel from the bobbins to the drawing rolls and on which my improved guides and detectors are mounted. There is one guide and detector for each sliver, and

each guide comprises two guiding portions which. are separatedin the direction of the length of the sliver and are situated above the top edge 3 of the rail 1, one guiding portion having a guiding notch for the sliver in its lower side and the other having a guiding notch for the sliver which is open at the top. A pivotally-mounted detector is situated between these guiding portions and is adapted normally to rest on the portion the sliver which is situated between the notches. So long as the sliver is intact the detector will be held in its elevated position by the sliver, but if the sliver breaks, then. the detector will drop into a position to' be with a portion 7 extending laterally fronr the lower edge of the portion 4,and with a downturned portion or stem 8 which is adapted to overlie and be secured to the rail 1 by any suitable means, such a screw 9. The stem 8 1s situated at one end of the por- Y tion 4, and said portion 4 is provided in its lower edge with a guiding notch 10 for the sliver 2.' This guiding notch 10 is preferably situated adjacent the stem 8, but at one side thereof. The portion 5 is formed with the Patented May 16, 1922.

Application filed March 14, 1821. Serial No. 452,008. l

I will preferably complete guiding notch 11 for the sliver. Said notch 11 is open at the top so that the sliver can be enteredthereinto from above. The notch 10, on the other hand, is open from the bottom, so that the sliver must be entered thereinto from beneath. The portion 5 is'preferwhich extends transversely thereof on its under side and which is adapted to receive the sliver 2. i

The usual vibrating feeler which co-operates with. the detectors for stopping the machine upon the breakage ofany sliver is indicated at 16. It is mounted on arms 17 fast I on a rockshaft 18. Said feeler is constructed to vibrate toward and from the rail 1, as usual'in machines of'this character, and it is situated so that during each vibration, it passes beneath the guide but does not have ,suflicient amplitude of vibration to contact with the rail 1. So long as all the detectors are in their elevated position, as shown in full lines in the drawing, the feeler is free to have its complete vibrating movement, but if any sliver breaks and the corresponding chine in a well-known way'.

feeler drops into the dotted line position, Fig. 2, then the feeler will be arrested in its vibration by coming against said detector, andthis will cause the stopping of the ma One feature of my detector to which I desire to call special attention is that it is so constructed and arranged that when it is in its depending position the feeler will strike A 7 against the edge thereof. This is a decided advantage because the impact of the feeler against the detector is edgewise as distinguished from flatwise, that is, it is in the plane of the detector rather than trans- ,versely thereto. Because of this there is no danger that the impact of the feeler against the detector will bend the latter as would be the case if the feeler engaged the detector flatwise.

My improved guide is arranged so that it guides the sliver at two separated points either side of the detector and also furnishes a'proper support forsaid sliver at both sides of the detector. The upper edge 3 of the rail 1 constitutes one support for the sliver and the notch 11 constitutes another sup port so that if the sliver becomes slack it will be supported at both sides of the detector;

Another advantage of my improved guide "is the ease with which the sliver can be threaded into the notches 10 and 11. It will be noted that because of the ofiset 7, the portion 4' is in a plane parallel to the vertical leg of the rail 1, but spaced therefrom, and the sliver. can be readily entered into the notchlO by passing it underneath the end 19 of the portion 4 and between the latter and the top edge of the rail 1; The sliver can then be passed around underneath the portion 5 and around the rounded edge 12 thereof and then can be dropped into the notch 11. The threading of the guide, therefore, is a very simple operation and if an) sliver should break it can be quickly spliced and threaded back into its guide.

I claim:

1. In a roving machine or the like, the combination with a supporting rail, of a guiding member secured to the rail and having two sliver-guiding portions separated in the direction of the length of the sliver, one of said guiding portions having its lower ed e spaced from the rail and provided with a iver-guiding notch into which the sliver may be entered by passing it between the supportin rail and said lower edge, the other guiding portion having a sliver-guiding notch open at the top, whereby the sliver is supported in the last-namel notch and by the rail but is guided by both notches, and a. detector pivoted to said guiding portions and situated between them and adapted to rest on the sliver.

.2. In a roving machine or the like, the combination with a supporting rail, of a guiding member secured to the rail and having two sliver-guiding portions separated in the direction of the length of the sliver, one of said guiding portions having its lower edge spaced from the rail and provided with a sliver-guiding notch into which the sliver may be entered by passing it between the supportin rail and said lower edge, the other guic ing portion having a sliver-guiding notch open at the top, whereby the sliver is supported in the last'named notch and by the rail but is guided by both notches, and a detector pivoted to said guiding portions and situated between them and adapted to rest on the sliver, said detector being in the form of a plate.

8. In a roving machine or the like, the combination with a supporting rail, of a plurality of guiding members thereon, each guiding member having two separated but connected guiding portions, one of said guiding portions having a sliver-guiding notch in its lower edge and the other a sliver-guiding notch open at the top, a stem extending from the lower end of one of the guiding portions but offset therefrom, and means for securing said stem to the rail.

4. In a roving machine or the like, the combination with a supporting rail. of a plurality of separate guiding members (hereon, each guiding member having two guiding portions separated in the direction of the length of the sliver, one guiding portion of each guiding member having its lower edge spaced from the rail and provided with a sliver-guiding notch into which the sliver may be entered by passing it between the rail and said lower edge, the other guiding portion of each member having a, sliverguiding notch open at the top whereby each sliver supported by the rail and in the last-named notch and is guided by both notches, a detector pivoted between the guid- 111g portions of each guiding member and adapted to rest on the shver, and means for securing each guiding member to said supportingraiil With both guiding portions on the same side of but spaced from the rail.

In testimony whereof, I have signed my name to this specification.

THOMAS BENTLEY. 

